Patents by Inventor Victor C. Astone

Victor C. Astone has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Glass bubble filled polybenzimidazole
    Patent number: 5308909
    Abstract: A moldable hollow glass filled PBI composition. The composition may be prepared by making a well-mixed slurry of glass microspheres in a solution of PBI in a suitable solvent, and then spinning the slurry through a jet or die under pressure and into a water bath where the particles coagulate. The solvent dissolves in the water, allowing solvent-free PBI-glass composite particles to be isolated.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: May 3, 1994
    Assignee: Hoechst Celanese Corp
    Inventors: Paul N. Chen, Sr., Victor C. Astone, William M. Cooper, O. Richard Hughes